Ventilator.



G. G. LOEHLER.

VBNTILATOR.

APPLICATION FILED 00T. 29, 1913. 1,1 18,365. Patented Nov. 24, 1914.

. 2 SHEETS-SHEET 1.

"Emmi- Tami...

G. G. L0EHLER.

VENTILAIOR.

APPLICATION FILED OUT, 29. 1918.

Patented Nov. 24, 1914.

2 SHEETS-SHEET 2.

NITED STATES rATENT oFFicE.

GUSTAV G. LOEHLER, OF WASHINGTON, DISTRICT 0F COLUMBIA.

VENTILATOR.

Specification. of Letters Yatent. Patented NOV. 24, 1914.

Application led October 29, 1913. Serial No. 798,115.

To all whom z't may concern:

Be it known that I, GUs'rAv G. LOEHLER, citizen of the United States, residing at Washington, District of Columbia, have invented certain lnew and useful Improvements in Ventilators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others -skilled in the art to which it 'of closing the windows and thus obviating a source of much discomfort to the occupant, especially if` the storm be of long duration.

Another object is to provide a ventilator 'so constructed as to render it possible for a house holder to air the house at night or during her absence without danger of rain beating in or thieves entering and which excludes liies and other insects.

With these and other objects in view, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed. p

In the accompanying drawings: Figure 1 represents a front elevation of a window equipped with this improved ventilator; Fig. 2 represents a longitudinal vertical-section thereof; Fig. 3 represents a transverse section of the ventilator; Fig. 4 1s a front4 elevation partly is section, of the sections comprising this ventilator shown separated and arranged in juXtapos1t1'on ready for assembling; Fig. l5 is an enlarged detail .i vertical section through the ventilator; Fig.

6 is an enlarged detail transverse section; Fig. 7 is a detail transverse section through the window frame showing :zi-portion of the ventilator.

This ventilator While itrfmay-.be-'associated with anyfsfor'm of compartment' or opening is shown ap lied to a window inside the sash thereo and is mounted to slide in suitable guides here shown" in the form of casings C to receive suitable springs and having laterally spaced flanges between which the ventilator operates, tapes T being connected with the ventilator frame and said springs to assist in raising the ventilator' when desired,

In the embodiment illustrated this ventilator is shown composed ofinner and outer frame sections constructed of` sheet metal `strips substantially U-,shaped in cross section, the outer section being composed of a substantially U-shaped member 1 and a straight side member 3,y the inner section 2 being designed to slide within the outer U-shaped member 1 and be secured therein by the detachable side member 3held in place by screws or other suitable fasteners.. The inner section 2 of this frame is prefer ably composed of a `single strip of channeled metal bent as shown in Fig. 4 to form a rectangular frame having three cut off corners 4 and one angular corner 5 where the ends of the strip are'connected. The opposite side members 6 and 7 of this 'frame section 2 are provided with a plurality of longitudinallyspaced slots S'those in one" member being arranged opposite those in the other and which are designed to form supports to receive the ends of zigzag slats or vanes 9. These slots 8 are spaced a suitable distances apart to position the vanes `9 a proper distance fromfeach other to permit the free passage of air between them without producing a stron draft or current -in thev room equipped wit `thisventilator.`

These vanos 9 aresho'wn in the form of oppositely disposed triangles having a common leg 10 and they are shown constructed of glass to permit thelight to pass-there,

through but they may be composed of metal or any other suitable material.

As shown clearly in Figs. 4 and 5 the U- shaped channel members of which' the sections' `are composed ar'eiarranged in op-I posite directionsI inthe twosec'tions, the inner sectionQ having)` thefia'nges or legs of the channel mem ers`| extending outwardly and the outer section having' sideI flanges or legs extending inwardly so' that` legs of the sides Aand end members of thewhen the two sectionsare assembled the inner section itbet-ween and are overlapped by the legs lofthe channel bars 4of the outer section forming a casing substantially rectangular in cross section as is shown clearly in Fig. 5'. When in this-position suitable fastening screws are inserted for connecting the two sections together. 1

'lhe slots 8 in the opposite side members of the innerfsection 2 conformin shape to the cross sectional shape of the -vanes 9 and the ends of said vanes are adapted to be inserted through said slots and project into the casingformed by` the-channel bars or strips bf the inner and outer sections of the frame vand. a suitable packing 11 is disposed within said casing-between the. outer Wall thereof andthe ends of these vanes 9 vto prevent longitudinal movement of the' vanes and `breakagethereof. should they be composed of -glass and which prevents rattling-'when ing'value, with the corrugations extending in planes at right angles to the planes of the elements constituting the zigzag vanes, whereby the vanes` are reliably held against Y wobbling longitudinally and yet are suciently resilient 'to' -permit them to move longitudinally under pressure and thus pre- .'45 faceof its-upper and lower rails which are adapted to receive .these-bolts 12 'and124 vent dan erof the vanes breaking when made of g' ass and frombending when made i ofwsheet metal.

Thisimprovedventi'latorisshownequipped with two lookingbolts 12 and 12 arranged in the upper and vlower rails or frame members thereof andare-here shown extending through the flanges of the inner and' outer' sections ofthe ventilator frame, and hence perform the double fimction of auxiliary connecting elements for the sections and as locking bolts for the ventilator.

'The lower sash of the window is shown provided withsockets 13 and 14 in the inner When the upper sash'of the windowis loweredafnd the ventilator israised to close'the opening. formed by'the" lowering of thisv uppersash the-lower bolt y121will engagethef socket 13 -in the upper rail of the lower sash' 'of the window and 4securely-lock the 'ventilator in this position. 4Should the lowersash of. the windowbef-raised and the ventilator disposed at the upperl portion of the windowfff forming -afehollow casing around said frame, .the bolt 12 will 'engage the socket 14 in the lower rail of' this. lower-sash and securely i lock# the 'sash against-being lowered andthe ventilator a ainst beingraised.f When `both lockingafun'ction, when. inthis v-pfmiitionf" able material .is preferably arranged on one forml of transversely arranged slotsvr 1- through which the screws which enter the apertures 2 in the inner section 2 extend and which permit a slight transverse movement of section vlrelatively to section 2@ l claim as lmy invention s:

l 1. A ventilator comprising inner and outer frame sections ftelescopically engaged and each constructed ;of channel 'bars substantially lll-shaped in cross section, the free edges of the anges'ofone section extending toward those of the other sectionv to form they are 'composed of metal. rlhis packing 11 .isshown corrugatedl to enhanceits pack-'- justably connect said sections, and-venes.

carried by said inner section.

2. A( ventilator comprisinga frame having hollow side members each -providedin its inner-wall with' a plurality 'of longitudinally spaced slots, a plurality of vanes having -tlneends thereof mounted in said slots,v

the slots and vanes being zigzag in .cross section, and a corrugated resilient packing arranged in saidside members between the outer walls thereof and the ends of the vanes, the corrugations 'of the packing extendingin planes' at right angles fto the planes ofthe elements of the vanes.

'3. A ventilatorcomprising a frame, of slidably engaged sections each constructed of channel bars substantially U-shaped in cross section, the inner. section being rectan lar andv having the flanges thereof exten ing outwardly and the outer section being composed of a straight anda U-shaped member l-detachably connected, with -i the flanges thereof *extending inwardly, .the

flanges;j of the two .sections telescopingand vanes slidable in the inner'w'alls of said inner section and extending into said casing means arranged :between the ends of said vanes and the;l vopposed walls of said casing.

'4a. fventilator cfomprising a frame comtion and-the flanges of one telescopically en gaging those of the other, vanes mounted in -ing,and longitudinally corrugated cushiono posed of two sections U-shaped in cross sec- Aascre'en ,15 of wire nettlngor othersuitf.

said frame, and locking bolts extending )ny hand in presence of two subscribing'wittransversely through the flanges of the two Ilnesses. sections and projecting at one end beyond the frame, whereby they perform the double '5function of securing means for the frame Witnesses:

section and locking means for the frame. JAMES E. Sommmn,

In testimony whereof I have hereunto set L. O. HILTON.

GUSTAV G. LOEHLER. 

